Granted Patent
Utility
US 4,865,875 · App. 07/170,914
Micro-electronics devices and methods of manufacturing same
Inventor:
David Kellerman
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Mar 21, 1988
Inventor
David Kellerman
Assignee (at issue)
Digital Equipment Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.